Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentrotus depressus
The induction of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentro(us depressus was investigated in the laboratory, using waters conditioned by 15 different macroalgae combined with the periphytic diatom Navicula ramosissima. Larvae of P. depressus did not metamorphos...
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| Format: | Article |
| Language: | English |
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Universiti Malaysia Sarawak, (UNIMAS)
2004
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| Online Access: | http://ir.unimas.my/id/eprint/2120/ http://ir.unimas.my/id/eprint/2120/2/Combination%20of%20macroalgae%20conditioned.pdf |
| _version_ | 1848834913113997312 |
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| author | Jing-Yu, Li Siti Akmar Khadijah, Ab Rahim Satuito, Cyril Glenn Kitamura, Hitoshi |
| author_facet | Jing-Yu, Li Siti Akmar Khadijah, Ab Rahim Satuito, Cyril Glenn Kitamura, Hitoshi |
| author_sort | Jing-Yu, Li |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The induction of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentro(us depressus was investigated in the laboratory, using waters conditioned by 15 different macroalgae combined with the periphytic diatom Navicula ramosissima. Larvae of P. depressus did not metamorphose, but larvae of A. crassispina showed a high incidence of metamorphosis, especially in waters conditioned by coralline red algae or brown algae. High inductive activity for larval metamorphosis was detected in Corallina pi/ullfera-conditioned water during a 2.5-year investigation, but the activity was relatively low in February or March and in September, the off-growth seasons of the alga. By contrast, Ulva pertusa-conditioned water did not show metamorphosis-inducing activity except in spring or early summer. These results indicate that during their growth phase, red and brown algae release into their environment active substances that are involved in the larval metamorphosis of A. crassispina. |
| first_indexed | 2025-11-15T05:59:31Z |
| format | Article |
| id | unimas-2120 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T05:59:31Z |
| publishDate | 2004 |
| publisher | Universiti Malaysia Sarawak, (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-21202015-03-24T03:18:49Z http://ir.unimas.my/id/eprint/2120/ Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentrotus depressus Jing-Yu, Li Siti Akmar Khadijah, Ab Rahim Satuito, Cyril Glenn Kitamura, Hitoshi AC Collections. Series. Collected works R Medicine (General) The induction of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentro(us depressus was investigated in the laboratory, using waters conditioned by 15 different macroalgae combined with the periphytic diatom Navicula ramosissima. Larvae of P. depressus did not metamorphose, but larvae of A. crassispina showed a high incidence of metamorphosis, especially in waters conditioned by coralline red algae or brown algae. High inductive activity for larval metamorphosis was detected in Corallina pi/ullfera-conditioned water during a 2.5-year investigation, but the activity was relatively low in February or March and in September, the off-growth seasons of the alga. By contrast, Ulva pertusa-conditioned water did not show metamorphosis-inducing activity except in spring or early summer. These results indicate that during their growth phase, red and brown algae release into their environment active substances that are involved in the larval metamorphosis of A. crassispina. Universiti Malaysia Sarawak, (UNIMAS) 2004 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/2120/2/Combination%20of%20macroalgae%20conditioned.pdf Jing-Yu, Li and Siti Akmar Khadijah, Ab Rahim and Satuito, Cyril Glenn and Kitamura, Hitoshi (2004) Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentrotus depressus. Sessile Organisms 21(1):1-6 (2004). |
| spellingShingle | AC Collections. Series. Collected works R Medicine (General) Jing-Yu, Li Siti Akmar Khadijah, Ab Rahim Satuito, Cyril Glenn Kitamura, Hitoshi Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and Pseudocentrotus depressus |
| title | Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and
Pseudocentrotus depressus |
| title_full | Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and
Pseudocentrotus depressus |
| title_fullStr | Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and
Pseudocentrotus depressus |
| title_full_unstemmed | Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and
Pseudocentrotus depressus |
| title_short | Combination of macroalgae-conditioned water and periphytic diatom Navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins Anthocidaris crassispina and
Pseudocentrotus depressus |
| title_sort | combination of macroalgae-conditioned water and periphytic diatom navicula ramosissima
as an inducer of larval metamorphosis in the sea urchins anthocidaris crassispina and
pseudocentrotus depressus |
| topic | AC Collections. Series. Collected works R Medicine (General) |
| url | http://ir.unimas.my/id/eprint/2120/ http://ir.unimas.my/id/eprint/2120/2/Combination%20of%20macroalgae%20conditioned.pdf |